Servo choice ....

[BASS 666]

hi guys i'm getting ready to look for some servos for the Raptor 90 SE i bought and i thought i would ask what servos would do the job ? i went overboard the last time and spent over 500 on servos for my Raptor 50 but this time i will be looking to buy something cheaper or even second hand ... i've been reading a lot about servos and if i can i would like HV servos then i wouldn't need to step the voltage down when using a Lipo battery ....

i don't really know if i need tougher servos for the 90 compared to the 50 so i need a bit of help from someone who knows ... thanks guys ....

[jimmyhorns]

You would be fine with a set of second hand align 610's on the cyclic. Just use an LiFe battery rather than a Lipo and then you can avoid a regulator in the same way.

You are not going to need crazy powerful servos on a raptor

[BASS 666]

You would be fine with a set of second hand align 610's on the cyclic. Just use an LiFe battery rather than a Lipo and then you can avoid a regulator in the same way.

You are not going to need crazy powerful servos on a raptor

cheers Jimmy ... any particular life batt and how long does a life batt last when flying ?

[jimmyhorns]

cheers Jimmy ... any particular life batt and how long does a life batt last when flying ?

For the servos, you just need a 2S battery, somewhere between 2000 and 4000 mAh

You will have to check on the capacity you have taken out of it per flight (so do 2 or 3 flights, and see how much you have to put back in in mAh and then work out how many flights to take yourself down to 40% capacity). This will probably be about 4 or 5 flights, but depends on style and servo current drain.

I used to get 6 out of my knight 3D on a 2S 3000mAh LiFe as a receiver pack and never ended up going below 50% capacity.

[BASS 666]

For the servos, you just need a 2S battery, somewhere between 2000 and 4000 mAh

You will have to check on the capacity you have taken out of it per flight (so do 2 or 3 flights, and see how much you have to put back in in mAh and then work out how many flights to take yourself down to 40% capacity). This will probably be about 4 or 5 flights, but depends on style and servo current drain.

I used to get 6 out of my knight 3D on a 2S 3000mAh LiFe as a receiver pack and never ended up going below 50% capacity.

thanks for your help i will look into this set up ....

[10x]

I have 2 Raptors and use these life batteries.....
A123 Battery Pack 2 Series 2500mAh
I also use the same battery on a Synergy E7se, They normally use around 200-220mah per flight..
The E7se is using MKS servos and the 2 Raptors are using Align servos..

[trillian]

Is it flybarred still or converted to flybarless?

With a FBL heli servo speed is more important because the aileron and elevator servos are having to do the work that the flybar would have done.

[BASS 666]

I have 2 Raptors and use these life batteries.....
A123 Battery Pack 2 Series 2500mAh
I also use the same battery on a Synergy E7se, They normally use around 200-220mah per flight..
The E7se is using MKS servos and the 2 Raptors are using Align servos..

what Raptors do you have ?

[BASS 666]

Is it flybarred still or converted to flybarless?

With a FBL heli servo speed is more important because the aileron and elevator servos are having to do the work that the flybar would have done.

still flybarred .. just the way i like em lol ....

[10x]

what Raptors do you have ?

Both Electric, a stretch e720 to 753 blades and a e820, Just finished charging the E7se life pack and that took 439mAh for 3 flights.
With your Raptor being nitro you have a extra servo to take into account and also if you have onboard glow...

[trillian]

still flybarred .. just the way i like em lol ....

I still have a few flybarred models as well and no intention of changing them (Robbe Futura SE, Dyna-X and Knight 3D).

If the 90 SE is mechanical mixing like the 50/60/90V2 then what you could do is use 610s on the aileron and elevator and then get something fast with lots of torque for the collective and then a 610 or 620 on the throttle. Some older tail servos are not capable of handling 6 volts so for example the Futaba 9254 or JR 8900 need to stay closer to 5 volts.

[BASS 666]

Both Electric, a stretch e720 to 753 blades and a e820, Just finished charging the E7se life pack and that took 439mAh for 3 flights.
With your Raptor being nitro you have a extra servo to take into account and also if you have onboard glow...

nice ... i have a Raptor 30 with the Align 2in1 and its flawless on Lipo so i don't know if i should go the same route with the 90 ....

[BASS 666]

I still have a few flybarred models as well and no intention of changing them (Robbe Futura SE, Dyna-X and Knight 3D).

If the 90 SE is mechanical mixing like the 50/60/90V2 then what you could do is use 610s on the aileron and elevator and then get something fast with lots of torque for the collective and then a 610 or 620 on the throttle. Some older tail servos are not capable of handling 6 volts so for example the Futaba 9254 or JR 8900 need to stay closer to 5 volts.

i still have a bls 451 and a ds 620 in their boxes from a few years ago and the 90 came with a Futaba S 9254 on the tail so i just need 2 more servos if i use the S9254 but its 4.8 and id rather have 6v ....

[10x]

I am not a stick banger, just big air. So although 2 sets of the servos are rated at 8.4v i find that i can not tell the difference at 6.6v. What i like about life packs is that i can fully charge them when i come
home from a fly and not worry about them being left on the heli like that.

[BASS 666]

I am not a stick banger, just big air. So although 2 sets of the servos are rated at 8.4v i find that i can not tell the difference at 6.6v. What i like about life packs is that i can fully charge them when i come
home from a fly and not worry about them being left on the heli like that.

yeah i see what you mean and i am a stickler for taking the battery out of the heli when i get in ....